Big Sandy Reservoir is a man-made lake located near Farson, Wyoming.
It was created in 1963 as part of a Bureau of Reclamation project to provide irrigation water to the surrounding agricultural areas. The reservoir has a capacity of 73,000 acre-feet and is fed by the Big Sandy River and snowmelt from the Wind River Range. The primary surface flow providers are the Big Sandy River and Cottonwood Creek. The snowpack providers are the Wind River Range and the Wyoming Range. Agriculture is the primary user of the water from Big Sandy Reservoir, with over 28,000 acres irrigated annually. The reservoir also provides opportunities for recreational activities such as fishing, boating, and camping.
Wind
Humidity
| Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change | 0.0% |
| Percent of Normal | None% |
| Minimum |
6,725.18 ft
2021-09-03 |
| Maximum |
6,763.27 ft
2024-06-10 |
| Average | 6,748 ft |
| Dam_Height | 85 |
| Hydraulic_Height | 69 |
| Drainage_Area | 439 |
| Year_Completed | 1951 |
| Nid_Storage | 54400 |
| Structural_Height | 85 |
| Foundations | Rock, Soil |
| Surface_Area | 2510 |
| Outlet_Gates | Valve - 2 |
| River_Or_Stream | BIG SANDY CREEK |
| Dam_Length | 2350 |
| Hazard_Potential | High |
| Primary_Dam_Type | Earth |
| Nid_Height | 85 |
Big Sandy River Near Farson
|
13cfs |
Pacific Creek Near Farson
|
3cfs |
New Fork River Near Big Piney
|
231cfs |
Green River Below Fontenelle Reservoir
|
872cfs |
Green River Near La Barge
|
1250cfs |
Blacks Fork Near Little America
|
37cfs |